BL Tec Model 8302


Contents:




General Description


MODEL 8302

A LOW COST/HIGH QUALITY resistance or fluid level control with Built-in holding circuit. Two SPST relays - the second relay to operate remote signal devices or a secondary pump. Screw terminals for easy field installation.

Ideal product for stocking distributors or manufacturers who need OFF-THE-SHELF versatility without large stock investments.

DIRECT OPERATION

PUMP DOWN-output remains ON until the absence of liquid (HIGH RESISTANCE) on probe circuit.

INVERSE OPERATION

PUMP UP-output remains ON until the presence of liquid (LOW RESISTANCE) on probe circuit.

Typical Applications

Detection of level conditions in Tanks, Sumps, Reservoirs, Wells or Pools, Vending Machines, Water Softeners, Dishwashers, Coffee Makers, Ice Machines. Food, Dairy, Brewing and Chemical Processing. Metal to Metal Contact Detection in Conveyor and Robotic Applications. Leak Detection in Ducts, Sub-Floors, etc.

AS ACTUATORS I SENSORS

Probes, Float, Flow, Pressure Switches, Thermostats, Push-button Actuators, Temperature, Pressure, Humidity.


Features 8302




APPROVAL:			U/L RECOGNIZED
WARRANTY:			TWO YEARS or 100,000
				operations

PROBE CIRCUIT:		        AC (LOW CORROSION) or
				Dc (LONG DISTANCE)

HOLDING CIRCUIT:	        Built-in for differential
				levels or manual reset

OPERATING MODE:	                Either Direct or Inverse
				via program wire

INTEGRATED CIRCUIT RELIABILITY: No SCR's

PROBE SHARING:		        Two controls can SHARE
				One probe EX. pump-up with
				low level alarm.



Specifications 8302




Operating Mode:		with resistance of 47,000 OHMS or LESS across the
			sensing circuit
				Direct - load relay closes
				Inverse - load relay opens

Input:			Standard - 120 Volt AC, 50/60 Hertz + 10%
			Optional - 240 Volt AC, 50/60 Hertz
					   - 12 to 24 Volt AC 50/60 Hertz
					   - 5 to 24 Volt DC

Power:			2.0 VA, 1.0 Watts energized - 0.12 Watts standby

Load Contact:		Standard - Two (2) SPST Normally Open silver
                        cadmium oxide
			Optional - One (1) SPST Normally Open silver
                        cadmium oxide

Contact Rating:		10 AMP resistive load or '/3 HP at 120 VAC
			6 AMP resistive load at 240 VAC or 28 VDC

Contact Life:		Electrical - 100,000 operations at rated load
			Mechanical - 50,000,000 operations

Sensing Circuit:	Standard - 17 VAC open circuit, 170 microamps                               short circuit
			Optional - 22 VDC open circuit, 220 microamps
                        short circuit

Holding Circuit:	BUILT-IN (for single point ON/OFF level control,                            connect upper probe & common without holding
                        circuit)

Sensitivity:		Standard - 47,000 OHMS - Fixed
			Optional - 1000 OHMS to 1 MEGOHM - Fixed

Response Time:		Approximately 1.0 seconds
			(Contact factory for additional time delays)

Connections:		Standard - Screw terminal, 10 amp 250V, wire 12 to
			22 AWG
			Optional - '/4 inch quick connect tab terminals

Mounting		EASY two point mounting with #8 screws

Temperature:		Operating Temperature O to 70 degrees Centigrade

Weight:			Screw term - 6.7 OZ net / 8.4 OZ shipping 
			Tab term - 6.5 OZ net / 8.2 OZ shipping

Other:			Circuit immune to EMI and RFI interference

Approval:		U/L · Underwriters Laboratory Recognition


Dimensions 8302




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Last Updated: 18 July 2002, TAM